Hey Draug, I saw your anubias post. Are the spots little holes at all? Holes are a light issue (too much). Have you tried gently rubbing them off with something like a damp cloth? If its algae, itll probably help to rub it off.

Anubias grows so slowly that its a prime target for algae to attack it, which is a shame. An occasional rub-off of it with a cloth will help it if so!

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"Through building and maintaining beautiful nature aquaria people re-learn the intricate connections between forms of life, plants, fish, microorganism and humans. Riches and beauty come from harmony, from balance. Aquaria are great teachers of this truth." -Takashi Amano